div.fragmentation-container {
    height: 10px;
    width: 100%;
    border: solid grey 1px;
    padding: 1px;
    overflow: hidden;
    content-align: center;
}

div.fragmentation-container div {
    height: 10px;
    float: left;
    min-width: 0.5%;
}

div.fragmentation-container div.used {
    background-color: #808080;
}

div.fragmentation-container div.free {
    background-color: #f0f0f0;
}